Abstract:
An apertured plate support mechanism used in an electron beam lithography machine. The apertured plate is held to a plate holder. The plate support mechanism has the plate holder for holding the apertured plate and a holder support for supporting the plate holder. The apertured plate is provided with an aperture through which a beam of charged particles passes. Grooves extending radially in plural directions about the center axis of the aperture are formed in the supported surface of the plate holder or the supporting surface of the holder support. Convex portions engaged in the grooves are formed on the other of the supported or supporting surfaces.
Abstract:
An ion source includes an arc chamber having an extraction aperture, and a plasma sheath modulator. The plasma sheath modulator is configured to control a shape of a boundary between plasma and a plasma sheath proximate the extraction aperture. The plasma sheath modulator may include a pair of insulators positioned in the arc chamber and spaced apart by a gap positioned proximate the extraction aperture. A well focused ion beam having a high current density can be generated by the ion source. A high current density ion beam can improve the throughput of an associated process. The emittance of the ion beam can also be controlled.
Abstract:
In a mask holder for supporting a transfer mask which includes a thin-film portion having an aperture pattern forming region and a supporting frame portion for supporting the thin-film portion, the mask holder contacts with the thin-film portion except for the aperture pattern forming region.
Abstract:
An electron beam exposure device in which an electron beam from an electron beam source is passed through at least a slit of a first slit assembly. The first slit assembly includes: a base; a bearing assembly; a stage rotatably supported by the base via the bearing assembly; a stage rotation adjusting mechanism; a slit member; and at least one heat transfer path means for transferring heat of the stage to the base, wherein the at least one heat transfer path means enables the rotation of the stage by the stage rotation adjusting mechanism.
Abstract:
A holding mechanism includes a box body for providing a space for accommodating an X-ray mask, at least one opening formed at the side of the box body and a holding mechanism for holding the X-ray mask within the space by a kinematic mount system.
Abstract:
This VSB lithography system includes a first, second and third aperture for forming a single electron beam in each of the rectangular opening portion that are provided, and draws a figure pattern using the single electron beam formed by passing the beam through the first, second and third aperture in sequence. Each of the first, second and third aperture has a mechanism for rotationally driving the aperture around an optical axis up to an arbitrary angle from 0 to 360°. Further, in the third aperture, a mechanism for varying the opening slit width of the rectangular opening portion is provided.
Abstract:
A particle optical apparatus including an aperture plate for shaping a particle beam before the particle beam enters a monochromator filter assembly. The aperture plate has at least one aperture and is adjustable with respect to the monochromator filter assembly, in normal operating conditions, so that the size of the aperture used to shape the particle beam can be varied, and therefore the beam current entering the filter assembly can be varied.
Abstract:
An apparatus for a transmission electron microscope includes a housing configured to be attached to the transmission electron microscope; a plunger received in the housing and movable relative to the housing; a first set of pieces coupled to the plunger, the first piece being configured to move relative to the housing in response to the plunger moving relative to the housing; and a second set of pieces positioned in a fixed spatial relationship relative to each other, the second set of pieces and the first set of pieces forming a perimeter of an opening, an extent of the opening being continuously variable by moving the first set of piece relative to the second set of pieces.
Abstract:
This VSB lithography system includes a first, second and third aperture for forming a single electron beam in each of the rectangular opening portion that are provided, and draws a figure pattern using the single electron beam formed by passing the beam through the first, second and third aperture in sequence. Each of the first, second and third aperture has a mechanism for rotationally driving the aperture around an optical axis up to an arbitrary angle from 0 to 360°. Further, in the third aperture, a mechanism for varying the opening slit width of the rectangular opening portion is provided.
Abstract:
An apertured plate support mechanism used in an electron beam lithography machine. The apertured plate is held to a plate holder. The plate support mechanism has the plate holder for holding the apertured plate and a holder support for supporting the plate holder. The apertured plate is provided with an aperture through which a beam of charged particles passes. Grooves extending radially in plural directions about the center axis of the aperture are formed in the supported surface of the plate holder or the supporting surface of the holder support. Convex portions engaged in the grooves are formed on the other of the supported or supporting surfaces.